Bundling and packeting press



Oct. 29, 1957 w. LINDEMANN- 2,811,100

BUNDLING AND PACKETING PRESS Filed July 5, 1952 Inventor: MK 1/4/064444/4/ United States Patent BUNDLING AND PACKETING PRESS Waldemar Lindemann, Duesseldorf, Germany Application July 5, 1952, Serial No. 315,608

Claims priority, application Germany July 11, 1951 3 Claims. (Cl. 10098) This invention relates to a baling and packeting press; it relates particularly to the structure of the upper press box edges which serves to improve the cutting action of the press lid and the cooperation of the latter with the press box edges.

It is known to apply cutters to the edges of the press boxes, for the purpose to improve the cutting operations. Difiicultie's, however, resulted insofar as by the scissorlike cutting action of the lid and the upper lateral edges of the press box the overhanging scrap pieces were displaced along these edges towards the front portion of the box; the cutting procedure was greatly reduced by the accumulation of the overhanging parts.

Attempts have been made to eliminate this disadvantage by an undular or notched formation of the lateral upper box edges. However, it was found that the cutting etfect of the presses was thus greatly reduced after a comparatively short time. The box edges were prematurely destroyed, since the scrap pieces were pressed into their recesses and the cutting pressure had to be mainly taken up by these recesses.

It is the primary object of the invention to eliminate this draw-back and to preserve the full cutting capacity of the box edges.

A press box answering this object is by the way of example illustrated in the attached drawings.

Figure 1 illustrates a vertical sectional view of the press box, the box lid being shown in a plurality of operative positions, Figure 1A is a perspective view of a fragment of Figure 1 taken in an upward direction from cutting ledge 5, Figures 2, 3, 3a are sectional views of the upper press box edge and Figures 4 and 5 are side views of a notched and of an undulated ledge, applied to the upper edge of the press box.

Figure 1 shows a vertical sectional view of a substantially rectangular press box A, composed of two lateral walls, a front and a rear wall and a cover 1, hingedly mounted upon the rear wall of the box and provided with a cutter strip 2.

The upper edge portions of the lateral press box walls are provided with triangular projections 3, which prevent the sliding of overhanging scrap pieces 4 along the box edge during the closure of the cover 1 and the accumulation of these scrap pieces at the front 'end of the press box. The scrap portions are retained in the notches between the projections 3 and severed by the cover 1 and its cutting strip 2 respectively. The cutting strips 2 of the cover cooperate with the cutting ledges 5 and the cutting of the scrap pieces by the cutting strips 2 is performed by coaction with the cutting ledges 5. A press ram 14 is entered into the press box A in the usual manner.

Cutting ledges 5, see Figures 1 and 2, are provided at the inside of the box edge and secured in their operative position by the mounting strips 6, see Figures 2, 3, 3a, the strips being provided with the projections 3 or undulations 7, Figures 4, 5. The mounting strips 6 are shaped Patented Oct. 29, 1957.

N ice I is worn ofi, the ledge is reversed. The clamping strips 6 are secured by screw bolts 9, see Figure 3.

Figure '3'shows a'cutting ledge 5' which projects from the clamping strip 6. i

In conformity with Figure 3a, the cutting ledge 5 has been size-reduced by grinding. In order to maintain the proper distance between the cutter strip 2 of the cover 1 and the cutter ledge 5, the holes 10 for the entry of the screw bolts 9 are elongated. Pressure screws 12 are provided in the rear of the mounting strips 6. Upon loosening the nuts 13 the mounting strips 6 and the cutter ledge 5 may be adjusted to any desired position relative to the cutting strip 2 of the cover 1. V

The adjustable cutting ledges 5 may be preferably applied to the longitudinal walls, and also to the front wall of the press box.

The advantage of the instant press box consists therein that the cutting pressure, which reaches its maximum value at the lower end of the projections 3, 7 is taken up by the easily exchangeable cutting ledges 5, whereby the cutting effect is greatly improved. The scrap is severed on the box edge at the place where it was charged, since the mounting strips 6 prevent its displacement.

The cutting efficiency may be maintained at its optimum value by exchanging the cutter ledges 5 and regrinding the same.

The fastening of the cutter ledges 5 to the box edge is preferably performed in such a manner that the notched or undulated mounting strips 6 reach over the ledges 5 and thereby secure the same in their proper position.

In this manner the cutting ledges 5 can be easily removed and re-inserted; they support the notched and undulated strips 6 and practically take up the entire cutting pressure.

In order to re-insert the sharpened cutting ledges, the latter are as such or in combination with the mounting strips 6 adjustably located at the box edge. For this purpose the mounting strips 6 are provided with elongated holes. They are secured by screws, which are located in the edge strips 11. As long as the nuts 13 are loosened their position may be accurately adjusted, whereupon the final position of the mounting strips 6 and of the cutting ledges 5 is secured by the nuts 13.

Since various embodiments of the invention could be made without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

I claim:

1. In a baling and pa'cketing press particularly for scrap iron a substantially rectangular press box, composed of two lateral walls, a rear and a front wall, a lid hingedly supported upon said rear wall, a cutting strip inserted into said lid, a press ram to be entered into said press box, a series of successive proections interrupted by intervening base portions on the upper edge of the horizontal lateral box walls, cutting ledges located in the upper portion of the lateral box walls projecting underneath said series of projections for cooperation with the cutting strip of said lid, the upper edge of said cutting ledges being located substantially along the level of the bottom portions of said projections.

2. In a baling and packeting press according to claim 1 said projections having the shape of triangular upwardly pointed notches and horizontal mounting strips extending on the horizontal press walls above said cutn scram;su sta piallm cq an g anpgessn ox c mmas lid hin'gl gdly v supported upon said rca'i' wall, a cuttiug sq pl att ache'd to of successivetriangular projectibns hayinggthcin bases.

spaced from each other to secure the scrap pieces and being supported by said mounting strips and 'said"cuttcr ledJges.

References Cited in the file of this patent UNITED STATES PATENTS 1,812,79T Lindemanu June 30', 1931' FOREIGN PATENTS 791,164 Fiance Sept. 23,193.51 

